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Modulation of continuous ion beams with low drift velocity by induced wakefield in background plasmas

Published online by Cambridge University Press:  01 February 2013

Zhang-Hu Hu ,
Yuan-Hong Song ,
Yong-Tao Zhao  and
You-Nian Wang
Zhang-Hu Hu
Affiliation:
School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, China
Yuan-Hong Song
Affiliation:
School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, China
Yong-Tao Zhao
Affiliation:
Institute of Modern Physics, Chinese Academy of Science, Lanzhou, China
You-Nian Wang*
Affiliation:
School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, China
*
Address correspondence and reprint requests to: You-Nian Wang, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, China116024. E-mail: ynwang@dlut.edu.cn
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Abstract

Two-dimensional particle-in-cell simulations are performed to investigate the propagation of low energy continuous ion beams through background plasmas. It is shown that the continuous ion beam can be modulated into periodic short beam pulses by the induced wakefield, which can be adopted as a method to produce ultrashort ion beam pulses. Furthermore, the transport of the continuous ion beam in plasma with density gradient in the beam propagation direction is proposed and an enhanced longitudinal compression by density gradient is found due to the phase lock of ion pulses in the focusing regions of wakefield and reduced heating of plasma electrons.

Keywords

Ion beamNonuniform plasmaWakefield
Type
Research Article
Information
Laser and Particle Beams , Volume 31 , Issue 1 , March 2013 , pp. 135 - 140
Copyright
Copyright © Cambridge University Press 2013

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